19995912

素因数分解:

$2^3\times 3^2\times {\mathrm{167}}^1\times {\mathrm{1663}}^1$

素因数の和:1842

約数の個数: 48

約数和(自身を含む): 54512640

約数和(自身を除く): 34516728

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 167, 334, 501, 668, 1002, 1336, 1503, 1663, 2004, 3006, 3326, 4008, 4989, 6012, 6652, 9978, 12024, 13304, 14967, 19956, 29934, 39912, 59868, 119736, 277721, 555442, 833163, 1110884, 1666326, 2221768, 2499489, 3332652, 4998978, 6665304, 9997956, 19995912]

約数ペア:

[(1, 19995912), (2, 9997956), (3, 6665304), (4, 4998978), (6, 3332652), (8, 2499489), (9, 2221768), (12, 1666326), (18, 1110884), (24, 833163), (36, 555442), (72, 277721), (167, 119736), (334, 59868), (501, 39912), (668, 29934), (1002, 19956), (1336, 14967), (1503, 13304), (1663, 12024), (2004, 9978), (3006, 6652), (3326, 6012), (4008, 4989)]